Calling External Functions From Within the Model
Use LiveLink™ for MATLAB® to call MATLAB functions from within the model — for instance, when working in the COMSOL Desktop. The procedure is different than implementing a model using a script because you do not need to run COMSOL with MATLAB.
Start COMSOL Multiphysics as a standalone application. The external MATLAB function needs to be defined in the COMSOL model so that a MATLAB process can automatically start when the function needs to be evaluated. The result of the function evaluation in MATLAB is then sent back to the COMSOL environment.
Calling External Functions
To run a MATLAB function, enable Allow external MATLAB® functions in the Preferences window; see Allowing External MATLAB Functions for more information.